Universal Compatibility: Suitable for use in liquid line and hot gas defrost applications across a wide range of refrigerant types

preventing hazardous operation during maintenance

The 22" leads provide sufficient length for secure wiring into the control circuit

90-degree brass elbow specifically engineered as an OEM replacement part for Reznor unit heaters and duct furnaces

ensuring operational stability in high-ambient environments found in commercial ranges

Trane SWT1271 Limit Switch Universal Compatibility: Suitable for useThe Trane SWT1271 is a critical furnace high limit switch designed for HVAC system diagnostics and thermal protection. As a standard OEM replacement part, this auto reset limit switch prevents the heat exchanger from reaching a hazardous open temperature of 180F, cutting off power to the gas valve until the unit cools to its 150F reset point. For technicians troubleshooting furnace short cycling or 4 flash error codes on a Trane or American Standard